Facebook FQL Sample code error

https://developers.facebook.com/docs/technical-guides/fql/

FB的sample code跑不起來 原因很簡單 多了些不該出現的字串(accesss token)

error:

Warning: file_get_contents(https://graph.facebook.com//fql?q=SELECT+uid2+FROM+friend+WHERE+uid1=me()&): failed to open stream: HTTP request failed! HTTP/1.0 400 Bad Request in M:\test.php on line 26

改為

<?php
$app_id = '';
$app_secret = '';
$my_url = '';

$code = $_REQUEST["code"];

//auth user
if(empty($code)) {
$dialog_url = 'https://www.facebook.com/dialog/oauth?client_id='
. $app_id . '&redirect_uri=' . urlencode($my_url) ;
echo("<script>top.location.href='" . $dialog_url . "'</script>");
}

//get user access_token
$token_url = 'https://graph.facebook.com/oauth/access_token?client_id='
. $app_id . '&redirect_uri=' . urlencode($my_url)
. '&client_secret=' . $app_secret
. '&code=' . $code;
$access_token = file_get_contents($token_url);

// Run fql query
$fql_query_url = 'https://graph.facebook.com/'
. '/fql?q=SELECT+uid2+FROM+friend+WHERE+uid1=me()'
. '&' . $access_token;
$fql_query_result = file_get_contents($fql_query_url);
$fql_query_obj = json_decode($fql_query_result, true);

//display results of fql query
echo '<pre>';
print_r("query results:");
print_r($fql_query_obj);
echo '</pre>';

// Run fql multiquery
$fql_multiquery_url = 'https://graph.facebook.com/'
. 'fql?q={"all+friends":"SELECT+uid2+FROM+friend+WHERE+uid1=me()",'
. '"my+name":"SELECT+name+FROM+user+WHERE+uid=me()"}'
. '&' . $access_token;
$fql_multiquery_result = file_get_contents($fql_multiquery_url);
$fql_multiquery_obj = json_decode($fql_multiquery_result, true);

//display results of fql multiquery
echo '<pre>';
print_r("multi query results:");
print_r($fql_multiquery_obj);
echo '</pre>';
?>